Online MCQs Test – Gaseous Exchange – Biology 10th

1. Ribs are attached with:

2. The amount of molecular oxygen present in the air is about:

3. Increase in rate of breathing is due to the following:

4. Each bronchus have:

5. Each lung is made up of millions of:

6. The internal opening of nasal sacs opens into a long tube called:

7. These are microscopic openings present in the epidermis of leaves.

8. we use normally about __________ of the air coming into the lungs.

9. Plants exchange gases for the process/es of:

10. In the lower part of the thorax, lies a sheet of muscles called:

11. In humans, the process of respiration involves:

12. It is wrapped in two pleural membranes.

13. Larynx is located on:

14. Stomata are present in:

15. The opening of larynx has a lid like cover called:

16. It is an allergic response to pollens, dust, smoke, fur, feathers and several other substances.

17. In the following, the alveoli are infected so they may be filled with fluid or pus.

18. The biological functions which perform gaseous exchange:

19. It contains vocal cords to produce sound.

20. Expiration involves: